Gas hardening type molding machine

Details Gas hardening type molding machine Gas hardening type molding machine

1982-09-30

1985-07-30

Godici, Nicholas P.

Metal founding

Means to shape a forming surface

Including means applying vacuum directly to mold material

164 71, 164200, 164401, B22C 1524

Patent

active

045315655

ABSTRACT:
Disclosed is a gas hardening type molding machine wherein a vertical type molding box is disposed under a molding sand hopper having an upper part opened and a bottom part provided with a sand discharge port, and a mold cavity in the vertical split type molding box is communicated with both a vacuum device and a hardening gas generator through stop valves, thereby to conduct both the filling of molding sand and the permeation of a hardening gas by utilizing the suction operation of the vacuum device.

REFERENCES:
patent: 3172173 (1965-03-01), Ellms
patent: 4291740 (1981-09-01), Michelson
patent: 4417616 (1983-11-01), Seitz

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